Undoing a single-file Git Checkout - xcode

So, I am working on a project with XCode. Happily, I found out that it keeps an Git repository within every project. So, after a mistake on a code, i just used
git checkout aux.c
to move back from theses mistakes. Unfortunately, as i just found out, Xcode does not auto-commit, so, I ended up with a blank file.
I didn't commited anything after this, but still can't figure out how to undo this checkout.

Sorry, you can't. :-( You're going to have to replace the file some other way.
There are two places where git tracks your files - commits, and the index/staging area. Since there was no commit, and you checked the version of the file out of the staging area, there's no other place it would be.
Do run git status just in case, to make sure it doesn't still show staged changes to that file.
Any chance you had it open in an editor still and could undo the changes to the file that git checkout made? Some editors like Textmate and SublimeText will allow that; others don't.

If the file has never been committed to the repository then unfortunately you are out of luck.
From the sounds of it, you simply have an empty git repository, which will mean your file has been lost and something Versions (which comes with Lion) or Time Machine may be your best bet at recovering from your mistake.
To confirm if anything has been committed to the repository, use git log. If you get an empty response then you're out of luck on the git front.
Unfortunately, this probably this isn't the answer you were looking for.

In fact, undoing a first commit on git is impossible. So, if you are running Xcode, commit manually frequently.
But, there is another way.
If you are running OS X 10.7 Lion or latter (not sure about Snow Leopard), you can try to use the versions feature from OS X to recover any file. Too late for me, but it should work

Best way to recover if your uncommitted changes would be to go to (Left Pane) Source Control Navigator -> Stashed Changes -> Look for a file which dated/timed earlier than your commit which you would like to reverse and click to apply stash changes to the file. That would bring back all the unsaved files back.

Related

Can`t see the file history in Gitlens (on a specific project)

I have a problem with Gitlens extension. Firstly, Gitlens or Git History extension is working fine on any other project except the this Laravel project. My problem is, can`t see the file history or line history in this project.
On the other hand, there is no problem in the git log (Git History Extension) as seen in screenshot;
But I can't compare any files with their any version (every commit seems like in the ss). I have no idea what the problem is about.
Lastly, I don't think the problem is about extension settings because other projects do not have this problem. Is there a any chance to fix this issue without resetting git history?
I am answering after 3 months, maybe it works for someone. As I mentioned in the title, surely there is no problem about extension settings for this specific project. The problem is just about git files. Maybe, I damaged some git files while moving the project on my desktop :)
So, there is no chance to fix this issue without resetting git history or starting fresh with git, if you`re having the same problem.
Do not play with git files, it`s no joke!
I've got a similar issue. My problem is in using symbolic links for folders.
I have this folder symlink for my repos.
C:\>dir
Directory of C:\
27.09.2018 21:07 <JUNCTION> repos [C:\Users\Qwerty\repos]
(GitLens v11)
The top editor is opened via C:\repos
The bottom editor via C:\Users\Qwerty\repos
You can see that some git features still work (yellow), but others don't.
However, this is very strange, because in my other repos, I have never observed such issues.
Also notice below that it is still possible to invoke the same action via a git lens popup and then it is possible to use the Prev Next Revision buttons.
Anyway, after more testing, I actually observe the same thing in my other repos. I assume that something must have changed between versions as I only observe these issues for last maybe 2-3 months. I even submitted a ticket that GitLens stopped working in v12.0.0 and later versions https://github.com/gitkraken/vscode-gitlens/issues/1979
The buttons completely disappeared and even the commit information
v11
v12
And Now actually, after having reopened my repo via original path and after updating GitLens back to v12.0.6 I see that it is working properly!
Bottom editor is opened via C:\repos symlink.

How to solve: Xcode shows files still as modified after commit

I am using SourceTree as a git client.
A while ago, I had a major problem with my project and my git, so I had to reactivate a copy of my workspace from an external source. For that purpose I had created a complete new repository. Commiting to that now.
Today I've noticed, that most of my files appear as "modified" in Xcode. Even after commit and push (with SourceTree).
Source Control shows my two branches, what is correct:
And the History shows perfectly all the commits:
My feeling tells me, that in the background the old repository information is still present and does this bug. How do I handle this? Help is very appreciated.
Edit:
git diff --ws-error-highlight=new,old Output
Close Xcode. If you can avoid it, don't reopen Xcode :-) If it's an absolute must, reopen Xcode. The M markers should be gone.
This worked for me:
Delete derived data folder(Steps: Click Xcode on top left -> Preferences -> Locations -> Click on the right arrow below Derived Data and that will you take you to the Derived Data folder in Finder. Delete it)
Quit Xcode (Don't just close the project)
Reopen Xcode
Check if the nature of the diff is related to eol (end of lines).
See "git diff - show me line ending changes?", like:
git diff --ws-error-highlight=new,old
If that is the case, try first:
git config --global core.autocrlf false
Then try again to clone your repo, and see if XCode still display those differences.
In your case, this is not about eol, but about an update done in your files.
Check for any .gitattributes file: is there a smudge directive in those files (which would explain an automatic process taking place on checkout)
See Keyword expansion for an example of smudge script.
Something seems to update JTAppleCalendar to its latest relase (6.0.1 from 7 days ago)
My feeling tells me, that in the background the old repository information is still present and does this bug.
Simply try, in command-line, to clone again that repo (in a brand new local path) and check if the issue persists in that new cloned repo.
to the JTAppleCalendar, I have changed from 6.0.0 to 6.0.1 manually. around 7 days ago. when the new xcode 8.0.1 arrived
In that case, all those files should be listed as modified: that is what Git does.

XCode - Any way to recover code after "Discard Changes"?

I inadvertantly did a very stupid thing last night. I have been working on an iPad project for a couple of months and (even more stupidly) do not have a backup. By right-clicking on the project in XCODE, I mistakenly clicked "Discard Changes"
(stupidity reigns again) I did not have any commits since the initial and when I did the Discard Changes, it seems that it went all the way back to the initial commit, which if I am looking at things correctly looks like each file is as it was the very first time it was saved.
My question is: Is there a way to recover my work? Is it in the .git directory? Is a copy stored elsewhere? or as a last resort, any chance to recover some of the source text with an un-delete utility?
Thanks,
Bob
For little clarification.. one can put back files from the trash as discard changes sends the file in the trash
Answer copied from How to undo xcode discard all changes if not committed
Quit Xcode.
Open the file you wish to bring back your lost changes to using TextEdit.
Go to File -> Revert To -> Browse All Versions...
Scroll through the available versions. Hopefully you will have many available to choose from.
Select a version and hit Restore.
Follow 1-5 for all necessary files.
Launch Xcode. You should now see the M next to these files in Project Navigator indicating they include uncommited changes (the changes you previously discarded).
Completely new files you may have created and were discarded can be found in the Trash.
Also a small piece of advice. If you are in need to discard changes, prefer using Source Control -> Discard Changes by right clicking on files in the Project Navigator, instead of Discard All Changes which might give you all kinds of trouble.
Have a nice day. :)
Well luck was on my side after all. As it turns out, when I did the Source Control > Discard Changes operation, it did not make any changes to the source code save in my project directory. I was able to start a new project and added the files back in. Once I did that I was able to compile and run my project in the simulator just as it was before the incident. I now have a backup as well as committed the changes in git.
You have a hope of fetching this code if you "pushed" & committed your prior-to-discarded changes into your local git repository. Or if you're using MacOS's included Time Machine or some other automated backup solution.
Aside from that, you might be hosed.
If you're on Lion or later, you may have Time Machine backups even if you don't have an external drive. As of Lion, Time Machine will take 'local snapshots' of files; this is how they support the "Versions" feature that lets you go back to previous versions of your files.
If you didn't have Time Machine turned on, though... you may be out of luck.

How do I ignore filemode changes in Git after conflict resolution?

I'm seriously about to stop coding and become a carpenter. This problem has had me stressed out for quite some time now and there doesn't seem to be any clear solution, other than forcing non-windows machines to use the file permissions windows seems to inflict.
Let's begin with the scenario. I have 2 development machines, one running Windows7, the other Mac OSX. They both are using Eclipse and EGit, and both have cloned the same project from a remote repo. That's where the similarities end, because my windows machine has a nasty habit of retaining a file mode of 644 (r-xr--r--) on its local repo, while the mode on the Mac defaults to a cool 775 (rwxrwxr--x).
So the problem's obviously the file permissions - GIT reports there are files that have changed due to differences in file modes and not actual content. The solution seemed obvious, run the following commands:
git config core.filemode false
git config --global core.filemode false
...which worked like a charm, except when committing and merging resolved conflicts.
For example, say files A, B and C exist on both the Windows and Mac repos. Next, let's change the file mode for these 3 files on the Mac machine so that the developer can edit them. Now change some of the contents in file A. Because we're ignoring the file modes (thanks to the commands above) only file A will be committed and pushed, ready for the Windows machine to fetch, merge and enjoy...
Now, let's edit file A again on the Mac and on the Windows machines, effectively causing a potential conflict, and let the Windows machine commit and push file A first. Then, when the Mac user commits their changes to file A and fetches the latest changes from the remote repo, a conflict is obviously created.
After resolving the conflict on the Mac machine and adding file A back to their local repo, committing that merge includes the previously ignored files B and C, and thus highlighting my problem! Why are the previously ignored files being included in this merge commit? This doesn't seem to be a Mac / Windows problem exclusively, as this problem can be recreated both ways...
This probably wouldn't matter if there were only 3 files, but this project I'm referring to includes thousands, and all these up and down push and pulls are insane. Am I missing something really obvious? Any help will be greatly appreciated!
So after a long and often frustrating run with trying to get Windows and Mac OS machines to like each other when comparing notes and changes over Git, it seems to just be the functionality of Git itself that's driven me mad, and a better understanding of how to better use Git seems to be the final answer.
Originally, I wanted to know how to continue ignoring file-mode changes (which Windows seemed to love updating with its own idea of what permissions and modes should be) while I was resolving conflicts created from updates to the files from someone else. Short answer: you can't. It's just the way Git works.
So how would you deal with this situation when it came up? Short answer again: use branching.
In my original way of using Git, I was continually working on my master branch on my local repo - bad idea already - so all my work would be committed there and all conflict resolution would need to be handled there too, forcing all files to be compared again and all permissions and file modes to come into question.
With branching, you work on another branch, commit to that branch, pull updates to your master branch, and merge you other branch with your master branch after that. Suddenly no more conflicts on the master from the remote repo, and you're winning!
Commands to do this (creating a branch from currently selected branch):
git branch newbranch
To checkout your new branch:
git checkout newbranch
To merge your new branch with your master branch (after you've committed to your newbranch, switch to the master first):
git checkout master
git merge newbranch
Hope this helps someone! -:)
well tbh, I'm not sure how you arrived at your conclusion since the obvious problem is git is not ignoring the file mode changes. This happens to us here too.
if you set that flag it seems to make no difference in some cases and still uses file modes to determine changed files.
that has to be a bug in git, what else could it be?
possibly your answer does not explain the rationale, therefore I dont think it's the correct answer, it's a workaround.
the correct answer is that git doesnt use filemode when it's told not to, it's obviously ignoring that and doing it anyway.
can you explain otherwise.

xcode 4 not cooperating with git

I'm seeing some strange behavior with Xcode 4 and git.
Create a new project
Right click on files - choose source control then commit. Add a comment.
Choose source control then push from the file menu.
Xcode returns an error complaining about uncommitted changes?!?
Calling git status from the command line, I can see that some of the internal userdata files are not committed. Shouldn't Xcode know to either skip or include those? There is no indication in Xcode that there are any uncommitted files. The only way to find them is from the command line.
One thought would be to manually create a .gitignore file, but I would assume that Xcode handles all that internally.
Did I just stumble onto a bug, or is there some standard step that I'm missing?
Thanks!
Well, a bug is in the eyes of the beholder, isn't it. Yes, you need to Setup your git ignores for xcode.

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